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E. G. SHAFFROTH.

BELL RiNGING APPARATUS. APPLICATIONTILED sum1?, 1917.

Llf, Patented May 27,1919. v

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WITNESSES E. G. SHAFFRUTH'.'

BELL RINGINGv APPARATUS.

APPLICATION FILED SEPT. I 7, I9I7I lIPatented"May 27 2 SHEETS-SHEET 2.

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ERNEST GODFREY SHAFFROTH, OF KALISPELL, MONTANA.

BELL-RINGING APPARATUS.

Specification of Letters Patent.

Patented May 27, 1919.

Application led September 17, 1917. Serial No. 191,892.

To all whom t may concern:

Be it known that l, ERNEST G. SHAFFROTH, a citizen of the United States, residing at Kalispell, in the county of Flathead and State of Montana, have invented a' new and useful Bell-Ringing Apparatus, of which the following is a specification.

The invention relates to a bell ringing apparatus, and more particularly to the class of electro-mechanical bell ringing devices.

rlhe primary object of the invention is the provision of an apparatus or device of this character, by which an alarm can be sounded for indicating a fire in a town, village, or small city, which is without a regular fire department and system of alarm, the apparatus or device being electrically controlled from a central point, for example, a telephone office or exchange.

More specific objects of the invention are to provide a bell ringer whose stroke may be lengthened or shortened at will; whose ha1nmer may be adjusted near to or far from the bell; whose hammer head is easily removed; and whose hammer lever may have sufficient resiliency to withstand the jars and strains of operation.

A further object of the invention is the provision of an apparatus or device of this character, which is comparatively simple in construction, thoroughly reliable and efficient in operation, positive in action, and inexpensive in manufacture and installation.

The invention will be particularly explained in the specific description following.

Reference is to be had to the accompanying drawings, showing the preferred embodiment of the invention, and forming a part of this specification, in which similar characters of reference indicate correspond-p ing parts in all the views.

Fig. 1, is a diagrammatic view in elevation showing the electric circuit and the alarm apparatus constructed in accordance with the invention.

Fig. 2, is an enlarged top plan view partly in section of the apparatus.

Fig. 3, is a side elevation.

Fig. 4, is a view similar to Fig. 3, looking toward the opposite side.

In constructing a practical embodiment of the invention the tower A, which may be of any approved type, and is located at a convenient point within a community, is provided for supporting a bell hanger B, in which is fixed a bell C, the same being sounded by means of the apparatus hereinafter fully described.

rlhe apparatus comprises a base 10, on which are arranged spaced pairs of bearings 11 and 12 respectively, the bearings 11, being fitted with` a driven rotatable shaft 13, which extends transversely of the base 10, and is suitably journaled in said bearings. On one end of the shaft 13, is fixed a disk 111, provided with a substantially T shaped groove 15 the opening extending diametrically thereof. In this slot is sli'dably engaged ahead 16, of a wrist pin 17, adapted to be adjusted toward or away from the center of the disk 14:, for the. eccentric mounting thereon. Journaled in the bearings 12, is a rocking hammer shaft 18. On one of the ends of shaft 18 is fixed a crank 19, having a pivot pin 20, with which is connected one eye terminal 21, of an adjustable throw rod 22, the other eye terminal 23, of which is engaged on the wrist pin 17, the eye terminals being tapped on the ends of the throw rod 22, and are locked in adjusted position thereon, through the medium of jam` nuts 24, which are threaded on said rod. The throw rod 22', is preferably formed in two sections, which are adjustably connected through the medium of a turn buckle 25, so that the rod 22, can be lengthened and shortened to vary the throw thereof.

On the other end of the shaft 18, is fixed a relatively resilient hammer arm 26, carrying a detachable or removable bell tap or hammer head .27, which is adapted to strike the rim of the bell 22.

The base 10 is secured in any suitable manner to the top of the tower A, at one side of the bell hanger B, with the hammer arm in position, to permit lthe tap or the head 27 to strike the bell B, for the sounding thereof, the base in this instance being formed with fastener receiving ears 28 on opposite sides to secure said base upon the tower.

Mounted upon the base 10, is a moto-r 29, which may be of the electrical type, being operated by a suitable electric circuit 30, including the switch 31, the circuit being provided with aI suitable source of supply. Said switch 31, is preferably located at a central point, for example, in a telephone ofce or exchange, for the closing of the circuit when the alarm is to be given indicative of fire within the community. On the motor shaft 29, is a pinion 32, which meshes with a gear 33, fixed to the driven shaft 13,

so that on the starting of the motor, motion will be imparted to the rock shaft 18, for actuating the hammer arm 26, so that the tap or hammel1 head 27, thereon willi strike bell, while the controlling switch may be located at any desired point, preferably at the location hereinbefore described.

It will be readily understood that when. it is desired to ring the bell, a closing of the switch 31, will start the motor 29, the movement of which will cause the rock shaft 18, to oscillate the hammer arm 26, for the tapping of the bell C, by the hammer head or tap thereby sounding the same.

The adjustment of the wrist pin 17 toward the center of disk 1a will evidently shorten the stroke of the hammer lever, while moving the wrist pin out near to the periphery of the disk will increase the stroke. On the other hand, adjusting the length ofv the throw rod 22 by means of its turnbuckle will not affect the stroke of the lever, but will change its position relative to the bell.

Shortening the effective length of rod 22 will result in pulling the hammer lever and A hence Vthe hammer head away from the bell, and vice versa. A

The hammer arm 26 is made of a leaf spring in two longitudinal layers or lamina. bolted together as shown, so that the strain set up by the constant jarring may be borne with little danger of breaking or bending. The idea in mind in making Jthe tap or vhead removable is to allow a new head or a heavier or differently shaped head to be put in place when desired. Obviously the mechanism Vof my invention may be used'y to ring any kind of a bell, but to do this several adjustments are in order and among them is that of suiting the head to the bell. By employing the various adjustments properly Copiesj of this patent may be obtained for five cents each, by addressing the Commissioner of iiatentst, y

it is possible to suit the ringing mechanismV to all ordinary sizes` and kinds of bells, and it is a simple matter to make any one bell ringv as loudly as seems necessary or wise.

From the foregoing, it is thought that the construction and manner of operation of the invention will be clearly understood, and, therefore, amore extended explanation has been omitted.

4What isclaimed is z' Y 1. The combination with' a bell, and means for rigidly supporting the same, of a hammer supported at one side of the bell, a rotatable shaft on which said hammer is. rigidly mounted, ay crank on" said shaft, a throw rod pivot-ally connected to saidl crank at one siden of' its connection with said shaft, a disk, means for adjusting the length of said throw rod to change thev position of the ham'- mer' relative to the bell, means for adj ustably Y connecting said throw rod toward and from the center of said Vdisk to adjust the length of stroke o f thev hammer, and means for actuating the disk. Y i

2; The combination with a bell', and means for supporting the same, of a self-contained bell-ringing device mounted upon the bell support and consisting of awbase, a` pair of spaced shafts mounted' on the hase, a hammer connected to one' of said shafts, a motor connected to the other shaft, a disk mounted on said other shaft, a throw rod betweenl the disk and the hammer shaft, said throw rod being adjustable in length to change the position of the hammer relative to the-bell, and means for adjustably connecting the throw rod to the disk to change the length of stroke of the hammer. i u

In testimony that I claim the foregoing as my own, I. have hereto affixed my signature in thepresence of twowitnesses.

ERNEST GODFREY S'HAF'FROTH.

Witnesses:

ROBERT" 1;"1iLnEL,I ALBERT W. VAN RINSUM.

Washington, D; C. 

